diff --git a/SoC/gd32vf103/Common/npk.yml b/SoC/gd32vf103/Common/npk.yml
index 05737aa5..e51d119f 100644
--- a/SoC/gd32vf103/Common/npk.yml
+++ b/SoC/gd32vf103/Common/npk.yml
@@ -329,7 +329,7 @@ buildconfig:
       - flags: -u __on_exit_args
         condition: $( startswith(${stdclib}, "newlib") )
       # for clang, newlib_nano still need to define symbol _printf_float to make link pass
-      - flags: -lc_nano -u _printf_float
+      - flags: -lc_nano -lclang_rt.builtins -u _printf_float
         condition: $( ${stdclib} == "newlib_nano" )
       - flags: -lsemihost
         condition: $( ${semihost} == 1 )
diff --git a/SoC/gd32vw55x/Common/npk.yml b/SoC/gd32vw55x/Common/npk.yml
index 9d51a0d4..1b0c95ab 100644
--- a/SoC/gd32vw55x/Common/npk.yml
+++ b/SoC/gd32vw55x/Common/npk.yml
@@ -297,7 +297,7 @@ buildconfig:
       - flags: -u __on_exit_args
         condition: $( startswith(${stdclib}, "newlib") )
       # for clang, newlib_nano still need to define symbol _printf_float to make link pass
-      - flags: -lc_nano -u _printf_float
+      - flags: -lc_nano -lclang_rt.builtins -u _printf_float
         condition: $( ${stdclib} == "newlib_nano" )
       - flags: -lsemihost
         condition: $( ${semihost} == 1 )